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crimeas [40]
3 years ago
11

What is twelve divided by two fifths

Mathematics
2 answers:
salantis [7]3 years ago
8 0

Answer:

30

Step-by-step explanation:

notsponge [240]3 years ago
5 0

Answer:

30

Step-by-step explanation:

12 divided by 2/5 is equal to 12 times 5/2 because you have to take the reciprocal.

So, 12 times 5/2 is equal to 30.

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Sophia has completed 80% of the problems on her math test. She has completed 32 problems. What is the total number of problems o
Sholpan [36]

Answer:

40

Step-by-step explanation:

80% of the test = 32 questions

100% of the test = x questions

Cross multiply

80*x = 100 * 32   Combine the right

80x = 3200         Divide by 80

x = 3200/80

x = 40

There are 40 questions on the test.

5 0
3 years ago
Suppose someone gives you 6 to 1 odds that you cannot roll two even numbers with the roll of two fair dice. This means you win 6
fiasKO [112]

Answer:

0.75 ;

150

Step-by-step explanation:

Probability of rolling two even numbers :

{1, 2, 3, 4, 5, 6}

P(even) = 3 / 6 = 1/2

From a roll of 2 dice :

P(even) * P(even) = 1/2 * 1/2 = 1/4 = 0.25

P(not even) = 1 - 1/4 = 3/4

X : ____ 6 _______ - 1

P(x) ____ 0.25 ____ 0.75

Expected value :

Σx*p(x) = (6*0.25) + (-1 * 0.75)

= 1.50 - 0.75

= 0.75

If 200 games are played :, n = 200

Expected value * n

0.75 * 200

= 150

5 0
3 years ago
Last question very confused on if answer is D please answer as soon as possible
yawa3891 [41]
Yes the answer to this question is D. Thanks!
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While shopping for a gift, you find the perfect wallet on sale for 89% off its original $5.62 price. How
Nat2105 [25]

Answer:5.0018

Step-by-step explanation:

7 0
3 years ago
What's a word phrase for the algebraic expression 0.5(y+3.3)
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